.index {
    display: flex;
    width: 100%;
    height: 100%;
}

.center {
    width: 100%;
    height: 100%;
}

.aside {
    width: 280px;
    height: 100%;
    background-color: rgb(10, 61, 88);
}

.title {
    font-weight: 100;
    color: white;
    text-align: center;
    margin-top: 16px;
    margin-bottom: 32px;
}

.nav {
    width: 100%;
}

.nav .nav-item {
    display: flex;
    justify-content: center;
    width: 100%;
    padding: 12px 0;
}

.nav .nav-item:hover {
    background-color: rgba(255, 255, 255, 0.5);
}

.nav .nav-item a {
    color: white;
    font-size: 18px;
}

.header {
    width: 100%;
    height: 50px;
    background-color: rgb(240, 240, 240);
}

.main {
    width: 100%;
    height: calc(100% - 50px);
}

.main iframe {
    width: 100%;
    height: 100%;
}